package com.atguigu.netty.websocket;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;

import java.time.LocalDateTime;

//这里 TextWebSocketFrame 类型，表示一个文本帧（ frame ）
public class MyTextWebSocketFrameHandler extends SimpleChannelInboundHandler<TextWebSocketFrame> {
    @Override
    protected void channelRead0(ChannelHandlerContext ctx, TextWebSocketFrame msg) throws Exception {
        String text = msg.text();
        System.out.println("服务器收到消息" + text);
        //回复消息
        ctx.channel().writeAndFlush(new TextWebSocketFrame("服务器时间" + LocalDateTime.now() + text));
    }

    //当客户端连接后，触发方法
    @Override
    public void handlerAdded(ChannelHandlerContext ctx) throws Exception {
        System.out.println(ctx.channel().id().asShortText());//channel的id
        System.out.println(ctx.channel().id().asLongText());
    }

    @Override
    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {

    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        ctx.close();
    }
}
